ROSEVILLE, Mich. (Detroit Free Press) - No evidence has been found of a body from samples taken this morning from a Roseville driveway in a search for Jimmy Hoffa's remains.

The 4-inch core sample pulled out from six feet under a concrete slab was just a combination of clay and mud, Police Chief James Berlin. Results from analysis of that core sample and one more are expected back from Michigan State University on Monday, he said.

"We'll have to wait for the test results back from Michigan State," Berlin said. "The sample's muddy clay, so there's nothing visible that would indicate evidence of a body."

Equipment in a white State of Michigan box truck pulled up at about 9:30 a.m. next to the house on Florida street, near Eastland and Kelly. By 10 a.m., a portable hydraulic drilling machine was inside a shed in the backyard. Staccato pounding periodically ran out over the rumbling of a generator in the back of the Gator pulling it.

Berlin said the owner of the home around the time of Hoffa's disappearance in the 1970s was a bookmaker with ties to members of Detroit-area organized crime, the alleged prime suspects in Hoffa's disappearance.

About 150 media people and gawkers filled the sidewalk and blocked-off street next to the non-descript brick bungalow, watching the drilling take place.